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A novel fluorescein derivative as a colorimetric chemosensor for detecting copper(II) ion
- Source :
-
Dyes & Pigments . Jan2011, Vol. 88 Issue 1, p103-108. 6p. - Publication Year :
- 2011
-
Abstract
- Abstract: A novel fluorescein derivative, synthesized by the reaction of fluorescein hydrazide and 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone, was evaluated as a chemoselective metal ion sensor. Addition of Cu2+ to an aqueous solution of the fluorescein derivative resulted in a rapid color change from colorless to deep yellow together with a distinctive change in UV–vis absorption spectrum. However, other common alkali-, alkaline earth-, transition- and rare earth metal ions induced no or minimal spectral changes. The stoichiometry of the reaction and association constant of the fluorescein derivative with Cu2+ are described. Experimental results indicate that the fluorescein derivative could provide a rapid, selective and sensitive response to Cu2+, and could be used as a potential Cu2+ colorimetric chemosensor in aqueous solution. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01437208
- Volume :
- 88
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Dyes & Pigments
- Publication Type :
- Academic Journal
- Accession number :
- 53381936
- Full Text :
- https://doi.org/10.1016/j.dyepig.2010.05.008